Use the Harvest command instead of the Clear command. I’ve noticed the same thing when using the Clear command- 1 stack of 4 logs that sat without being picked up for 6 years. But using Harvest instead, laborers seem to harvest and transport the wood without leaving any behind.
Sorry,
When I stated collecting resources… I meant harvesting… none would respond…I have now buit 5 wood splitters next to the forest which is a little overboard to attempt to fix